21113112023000 has 64 divisors (see below), whose sum is σ = 49542300475200. Its totient is φ = 8421720307200.

The previous prime is 21113112022967. The next prime is 21113112023011. The reversal of 21113112023000 is 32021131112.

It is a self number, because there is not a number n which added to its sum of digits gives 21113112023000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29046449 + ... + 29764448.

It is an arithmetic number, because the mean of its divisors is an integer number (774098444925).

Almost surely, 2^{21113112023000} is an apocalyptic number.

21113112023000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21113112023000 is an abundant number, since it is smaller than the sum of its proper divisors (28429188452200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21113112023000 is a wasteful number, since it uses less digits than its factorization.

21113112023000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58811277 (or 58811263 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 21113112023000 its reverse (32021131112), we get a palindrome (21145133154112).

The spelling of 21113112023000 in words is "twenty-one trillion, one hundred thirteen billion, one hundred twelve million, twenty-three thousand".